diff --git a/effects.h b/effects.h
index 830209f..c2d6a52 100644
--- a/effects.h
+++ b/effects.h
@@ -173,18 +173,14 @@ void threeDee() {
 
   for (byte x = 0; x < kMatrixWidth; x++) {
     for (byte y = 0; y < kMatrixHeight; y++) {
-      if (x < 7) {
+      if (x <= 7) {
         leds[XY(x, y)] = CRGB::Blue;
-      } else if (x > 8) {
+      } else if (x >= 8) {
         leds[XY(x, y)] = CRGB::Red;
-      } else {
-        leds[XY(x, y)] = CRGB::Black;
       }
     }
   }
-
-  leds[XY(6, 0)] = CRGB::Black;
-  leds[XY(9, 0)] = CRGB::Black;
+  lensMask();
 
 }
 
diff --git a/utils.h b/utils.h
index 3d385b4..0c1c66f 100644
--- a/utils.h
+++ b/utils.h
@@ -117,6 +117,14 @@ void confirmBlink() {
 
 }
 
+void lensMask(){
+  const int mask_leds[] = {5,6,7,8,21,22}; // The individual LEDs that make up the "nosebridge"
+  for(int i=0; i<sizeof(mask_leds); i++){
+    leds[mask_leds[i]] = CRGB::Black;
+  }
+}
+
+
 // Determine flash address of text string
 unsigned int currentStringAddress = 0;
 void selectFlashString(byte string) {